\Device\ACPIEC: The embedded controller (EC) hardware didn't respond within the timeout period. This may indicate an error in the EC hardware or firmware, or possibly a poorly designed BIOS which accesses the EC in an unsafe manner. The EC driver will retry the failed transaction if possible.
As per Microsoft: "Possible causes include:
1.An error in the EC hardware or firmware.
2.A poorly designed basic input output system (BIOS) that accesses the EC incorrectly".
See MSW2KDB for additional information about this event.
The problem was reported on various notebooks and tablet PCs. Some newsgroup posts suggest obtaining the latest ACPI drivers from the notebook manufacturer.
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